Changes in Matter unit

Here is a list of the objectives that we covered in the third unit. You are expected to be able to:

  • Balance chemical equations (covered in the test before the break)
  • Explain the law of conservation of mass during a chemical reaction
  • Represent the conservation of mass using the particle model
  • Determine the quantities of reactants or products using stoichiometric calculations (gram or mole)¬†(covered in the test before the break)
  • Distinguish an endothermic reaction from an exothermic reaction (for example, how does if change temperature? where is it in the chemical equation?)
  • Describe what a¬†precipitation reaction looks like
  • Represent a precipitation reaction using the particle model
  • Associate known chemical reactions with decomposition or synthesis reactions (for example, cellular respiration and photosynthesis)
  • Represent the photosynthesis reaction in a balanced equation
  • Represent the respiration reaction in a balanced equation
  • Give examples of acid-base neutralization reactions
  • Name the products formed during acid-base neutralization (salt and water)
  • Recognize an acid-base neutralization from its equation
  • Determine the molecular formula of the salt produced by the neutralization of a given acid and a given base